English

Ratio Asymptotic of Hermite-Pad\'e Orthogonal Polynomials for Nikishin Systems. II

Complex Variables 2019-10-22 v1

Abstract

We prove ratio asymptotic for sequences of multiple orthogonal polynomials with respect to a Nikishin system of measures N(σ1,...,σm){\mathcal{N}}(\sigma_1,...,\sigma_m) such that for each kk, the support of σk\sigma_k consists of an interval Δ~k\widetilde{\Delta}_k, on which σk>0\sigma_k^{\prime} > 0 almost everywhere, and a set without accumulation points in RΔ~k\mathbb{R} \setminus \widetilde{\Delta}_k.

Keywords

Cite

@article{arxiv.0707.1996,
  title  = {Ratio Asymptotic of Hermite-Pad\'e Orthogonal Polynomials for Nikishin Systems. II},
  author = {Abey López García and Guillermo López Lagomasino},
  journal= {arXiv preprint arXiv:0707.1996},
  year   = {2019}
}

Comments

24 pages, 2 tables